\3 Biodiversity fe^Heritage l^Library http://www.biodiversitylibrary.org The Ottawa naturalist. Ottawa,Ottawa Field-Naturalists' Club. http://www.biodiversitylibrary.org/bibliography/6216 v. 22 (1908-1909): http://www.biodiversitylibrary.org/item/28107 Page(s): Text, Text, Text, Text, Text, Text, Text Contributed by: MBLWHOI Library Sponsored by: MBLWHOI Library Generated 25 May 2010 11:15AM http://www.biodiversitylibrary.org/pdf2/003156000028107 This page intentionally left blank. 82 The Ottawa Naturalist, [July REPORT ON A COLLECTION OF FOSSIL WOODS FROM THE CRETACEOUS OF ALBERTA. By D. P. Penhallow, D.Sc, F R S C , F.G.S.A. Early in the present year, Mr. L. M. Lambe, of the Geological Survey, placed in my hands a specimen of fossil wood for deter- mination. It was without number, but it was described as having been collected by Mr. Milliken from the Edmonton Series of the Red Deer River, 100 miles west of Gleichen, Alberta, At a later date, Mr, Lambe sent me six additional specimens for determination. These were all reported as derived from the Judith River (Belly River) Series of the Red Deer River, Alberta. The catalogue numbers on the specimens correspond to the following general description: — - Nos. 275, 276, 319 and 330— Silicified woods. No. 838 — Silicified wood not determinable in conse- quence of extended decay and distortion of structure. No. 1676 — A longitudinal section of a cone, PlCEA ALBERTENSIS, N. SP. The specimen numbered 1676, is a longitudinal section of a cone, the basal portion of which has been removed. As found, it measures 38 mm, in its greatest length, and 18 mm. In its greatest width. The tipper end is complete, and the general structure is also intact within the limits of the specimen. The basal portion of the cone appears to have been carried away by fracture of the matrix. The character of the specimen does not admit of full deter- mination, but the shape immediately suggests comparison w 7 ith a cone of Picea, while both the size and general outline invite comparison with P. columbiensis , Penh., recently described as having been obtained by Dr. R. A, Daly from the Tertiary deposits of the Kettle River, B.C. 1 Measurements of the two cones show that the Alberta specimen is slightly narrower, and that about one-fifth of its length has been removed. The cojrespondence is so close that the two might well be regarded as the same species, but in the absence of external characters, such a correlation would be unsafe, and it seems desirable to designate the cone by a distinctive name, P. alherfensis, n. sp. CUPRESSOXYLON MACROCARPOIDES, PENH, Specimens 319 and 330 proved to be fairly well preserved woods of Cupvessoxylon macrocarpoides, with which it w 7 as pos- sible to compare them without difficulty. I Rept. on Foss. PI. from the Interna t. Bound. Surv. for 1903-05. Trans. R.3.C* t VIII, 1907, iv. I 1908] A Collection of Fossil Woods. 83 This is a species originally described from the Cretaceous of Medicine Hat, Alberta, but which ha:; more recently been found in the Tertiary of Kettle River, near Midway, B,C. 2 Its present occurrence in the Edmonton Series is, therefore, fully in accord with its previously known distribution. Sequoia albertensis, n. sp. The unnumbered specimen from the Edmonton Series represents a wood which is exceedingly well preserved in many portions, and admits of a detailed diagnosis, It is therefore taken as the type to which specimens 275 and 276 also belong, and they all clearly represent the same species of Sequoia. The diagnosis is as follows: — Sequoia albertensis, x. sp. Transverse. — Growth rings variable; the summer wood dense, sometimes rather open and occasionally double, the transition from the spring wood rather abrupt ; spring wood open, the tracheitis thin- walled, large, distinctly squarish- hexagonal and often much elongated radially. Resin cells scattering, sometimes rather numerous throughout, but especially dominant in the summer wood. Medullary rays distant 2-8, more rarely 10 rows of tracheitis. Tracheids rather uniform, sometimes in irregular rows in the summer wood. Radial, — Ray cells straight or more often contracted at the ends, equal to about 4 spring tracheids; the upper and lower walls rather thick, entire or sparingly pitted; the terminal walls rather thin, not pitted; the lateral walls with oval, conspicuouslv bordered pits, the broadly lenticular orifice usually diagonal to the cell axis, at first 1 or £?, at length becoming 1 per tr ache id in the summer wood. Bordered pits large, numerous, round or oval, commonly in two rotes in the earlier spring wood. Pits on the tangential walls of the summer tracheids numerous and prominent and large, but rather narrowly lenticular. Resin cells numerous, resinous. Tangential, — Medullary rays numerous, often upwards of 54 cells high, frequently more or less two-rowed. Cells frequent ly very resinous, oval or squarish, sometimes oblong, but chiefs- uniform and equal throughout. A comparison of these woods with that of the existing S. sempervirens, or red- wood, show T s most interesting and very close relations. In the diagnosis of 5. albertensis. certain of the structural details are given in italics, These indicate the res- pects in which there is an essential difference between it and 5. sempervirens. In all other features the two woods are 2. Ibid. 84 The Ottawa Naturalist [July essentially identical, and one might well be led, at first /to question if they are not, after all, only one form of the same species. But the number of pits which characterize the radial walls of the ray cells, the number of rows of pits on the radial walls of the tracheids, and the size and form of the pits on the tangential walls of the summer tracheids, point with certainty to specific differences, and the fossil is, therefore, described under a new name, for which purpose that of the province seems to be ap- propriate. General Conclusions. The character of the material discussed in the foregoing studies, leaves very little room for any conclusions which would be of value in stratieranhical determinations. The specimen of Picea offers only one of a very few examples of the occurrence of cones of this genus in Cretaceous deposits. Berry has recently shown the existence of beautifully preserved cones of Picea cliffwoodensis in the Upper Cretaceous of New Jersey, ! These he regards as comparable with the cones of P. excels a. They, however, offer no points of comparison with P. alheriensis, inasmuch as thev are much larger and more linear-oblong. As already noted, Penhallow has recorded the sparing occurrence of cones of P. columhiensis in the Tertiary of Kettle River, British Columbia, Knowlton has found cones of P. har- rimam 2 in the Upper Eocene of Kukak Bay, Alaska, a form which is in no sense comparable with P. alberteitsis, though it presents many features strikingly similar to those of P. ctiffwoodensis. It may be recalled in this connection, that the foliage of what are at present regarded as distinct species — P. iranquil- lensis, Penh., and P\ quilchensis , Penh., 3 — ■ has been obtained from the Tertiary of the Tranquille River and from Quilchena, B.C., and there is no present evidence to show that the more recently observed cone from the Cretaceous of Alberta, is not related to one of them, rather than to P. columhiensis, If these two were to be regarded as specifically identical, it would be possible to recognize a wider geological range for the species than has heretofore been known; but in the absence of external characters in the Alberta specimen, such a correlation would be unsafe, Ciipressoxylon macmcctrpoides, Penh-, has been determined on previous occasions, to be common to both the Tertiary and Cretaceous, 4 and its present occurrence in Cretaceous deposits, 1. The Flora of the Cliffwood Clays, Geol Surv, N.J., 1905, 2. Fossil Plants from Kukak Bay rtarriman. ExpcL. 1QQ4, iv, 150. 3. Report on the Tertiary Flora of British Columbia, Geol. Stirv. Can., Monogr. 1908- 4. N. A. Gymnosperrns, Penhallow. 238, 1908 J A Collection of Fossil Woods. 85 rann.it be regarded as having any special stratigraphica] sfenifi- cance. As bearing upon the present studies, it is worthy of note I hat m his discussion of the Flora of the Judith River beds Knowlton records at least three species of Sequoia. 5 Two of these are represented by foliage and small branches only. $. reichenbachii (Gemitz) Hcer, is known to extend from the Dakota formation to the Belly River Series, in which it is found in Canada S heterophylhi is a well known Cretaceous form of both Europe and America, and in the latter it ranges from the Later Potomac to the Willow Creek Series. The third species is represented bv a cone only as obtained from the Judith River beds ten miles north of Wild Horse Like Alberta, This species, which Knowlton does not distinguish bv a' specific name, he nevertheless finds to be very near to 5 heerii Lesq., although it likewise greatly resembles certain cones of 5. reidwnbachu from the Kome beds of Greenland as described by Heer. It may be the fruit of the wood now under discussion It is, however, impossible to correlate these isolated specimens more completely at this time. From the brief survey of the material thus presented it is clear that the different species possess no special value for strati graphical purposes, but they do extend our knowledge of their geological range and geographical distribution in important and interesting ways. 5. Geo]. & Pal. Judith River Beds. U. S. Geol, Stify,, H„H. 257, !Q<)5. \.\\. li2 . DESCRIPTION OF FIGURES. Sequoia Albertrxsis n. sp. Fig. I . Transverse section showing the general character of the s* ructure Pig. 2, Transverse section showing the double summer wood of the broader growth rings, x 52. Fig. 3. Tangential section .showing the character of the medullarv rw« Fig - 4 ' "tl^Vi. \" ry r " y - sh ™e *««« "* Fig. 5. Radial section showing the two-seriate bordered nits ,.r . i, spring tracheitis . x 227.5. ' ttu Fig. 6. Radial section showing the number and position of (.ordered pits on the tangential walb of the summer wood- " Fig, 1 I ' ■ . i 2 Pi Y g- 3 Fig. 4 88 > &l^£ The Ottawa Naturalist [July D«% ^i\ 3HARY|au NESTING [OF COOPER'S HAWK. Nbbiir^L st) ending a few days at A friend, who ^"f^J^tle St. Lou.s. told me Woodlands, Quebec on ™ j^^^LS "white" eggs; hut stated he had found an owl's nest Jg^gg*^ becaus r t he bird had he was not quite sure as to ^ ent ^ cax - _ From his des- left the ^?^£^j$£te& was very doubtful caption of the^nest andhab^ *g ^ q£ ^ SQ a specml whether the nest m question Sip was made to the locaMy on May 1st ^ tQ While about 7 5 yards away a sn^ I ^^ wWch was flv from the vicinity ot the neb . everg reeti tree, was placed about 35 feet up n f the t ° an g cmtained the Ult of sticks, bark, and a feiv feather ^ three eggs. Which, on sight, proved to rf ^ g^ Hawk. The eggs are a trifle smaller some what Winged Hawk and ere ot a ng five d soiled. Incubation was ad a^ced & ^ parts> tte ;"rhe b fir S ;^nentic''?eco , ra we have of it nesting about the this is Lilt lu^ «ia ^ „ + fifteen years. Island of Montreal j^^^ Que ., June 13, .908.